Prevalence of mast cells within the periodontal ligament of the developing rat molar

Mast cells are commonly associated with tissue inflammation and can expel an array of cytokines and mediators during activation or injury to the cell. Using rats, this study aims to assess the location and prevalence of mast cells about the developing first maxillary molar crown and periodontal ligament (PDL) of the developing mesiobuccal root. A relative incidence of mucosal and connective tissue-type mast cells within the PDL population was also investigated.Thesis (D.Clin.Dent.) -- University of Adelaide, Dental School, 200

Automatic Creation of Object Hierarchies for Ray Tracing

Intersection calculations dominate the run time of canonical ray tracers. A common algorithm to reduce the number of intersection tests required is the intersection of rays with a tree of extents, rather than the whole database of objects. A shortcoming of this method is that these trees are difficult to generate. Additionally, manually generated trees can be poor, greatly reducing the run-time improvement available. We present methods for evaluation of these trees in approximate number of intersection calculations required and for automatic generation of good trees. These methods run in O(nlogn) expected time where n is the number of objects in the scene. We report some examples of speedups

Iridoschisis and keratoconus in a patient with severe allergic eye disease and compulsive eye rubbing: a case report

Background Iridoschisis is a rare disorder characterized by splitting of the anterior and posterior iris stroma, resulting in disintegrated iris fibrils which float freely in the anterior chamber. We report an exceptional case of bilateral iridoschisis occurring in conjunction with keratoconus and severe allergic eye disease. Case Presentation A 24-year-old white man had had periocular contact dermatitis and allergic eye disease from the age of 3 years. He was allergic to grass, animal hair, and pollen and worked grooming horses. He compulsively rubbed his eyes. There was no history of previous blunt trauma to either eye. There were signs of bilateral iridoschisis and keratoconus with allergic conjunctivitis, all of which were more severe in his right eye. An open drainage angle was identified bilaterally on gonioscopy, excluding primary angle closure. There was no evidence of glaucoma in either eye. Conclusions There are two previous cases reporting the combination of iridoschisis and keratoconus, but no clear common etiology has been identified. In this case there was no evidence of angle closure but there were signs of allergic conjunctivitis. This amalgamation of signs might be explained on the basis of habitual eye rubbing. Treating the allergic eye disease has attenuated this behavior.</p

Kebijakan Penegakan Hukum Terhadap Kepemilikan Senjata Api Ilegal

Introduction: Distribution and use of a firearms illegally in Maluku during social conflict in the last few years is often cause many problems. Because after the conflict, a fight between village often use a firearm. Since the conflict in 1999, the use of firearms both organic and local homemade, widely circulated in the community. Purposes of the Research: Examine the legislation approach on law enforcement againts illegal possesion of firearms in the Maluku Regional Police juridiction and the constraints that faced. Methods of the Research: This research is juridical normative, using various primary and secondary legal materials. Data analysis is descriptive qualitative. Results Originality of the Research: Lew enforcement againts firearms possesion and abuse crime done by oleh Maluku Regional Police in the form of preemptive, preventive and repressive acts. In the law enforcement, Maluku Regional Police not always done enforcement, but also applying discression by freeing from legal sanction for the owner of the firearms that willing voluntarily to gave the firearms that they have. The constraints faced in the law enforcement was internal (lack of personnel, equipment and facilities, lack of officers knowledge supervision) and external (regulation are no longer appropriate, wide area, weak coordination and society cooperation)